From Canada here. I grew up somewhere where you see -40 degrees (where Fahrenheit and Celsius meet) during the winter is not surprising. The purpose for wearing

From Canada here. I grew up somewhere where you see -40 degrees (where Fahrenheit and Celsius meet) during the winter is not surprising. The purpose for wearing two sets of gloves is not really for temperature reasons. The first set is usually a mitt (no gaps between fingers). These are much warmer than gloves because your fingers are together. However, mitts make normal things nearly impossible like zipping up your jacket, tying your boots, etc. So you wear much smaller gloves underneath that allow for the needed dexterity but don't expose your skin to the outside when you take off the much bigger mitts.